{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (53.1878, -3.6856)",
 "slug": "discovered-lane-53-1878-3-6856",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.11517677971125,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 382.0,
   "end_distance_m": 384.0,
   "start_elevation_m": 182.13987553676074,
   "end_elevation_m": 182.70217907235497,
   "min_gradient_pct": -44.63230195108565,
   "suppressed_max_gradient_pct": 52.27897927253622,
   "suppressed_location_m": [
    346.0,
    348.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.452735074213706,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 381.0,
   "end_distance_m": 384.0,
   "start_elevation_m": 181.93859702012855,
   "end_elevation_m": 182.70217907235497,
   "min_gradient_pct": -42.11976458258562,
   "suppressed_max_gradient_pct": 45.37316469650913,
   "suppressed_location_m": [
    345.0,
    348.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 20.792399931158343,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 492.0,
   "end_distance_m": 497.0,
   "start_elevation_m": 191.99234762652327,
   "end_elevation_m": 193.0319676230812,
   "min_gradient_pct": -38.722199810952134,
   "suppressed_max_gradient_pct": 34.37046997698076,
   "suppressed_location_m": [
    221.0,
    226.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 16.182837154020717,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 589.0,
   "end_distance_m": 599.0,
   "start_elevation_m": 199.6505952685119,
   "end_elevation_m": 201.26887898391396,
   "min_gradient_pct": -27.065583068168735,
   "suppressed_max_gradient_pct": 29.23812673772062,
   "suppressed_location_m": [
    221.0,
    231.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 14.02125126596701,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 73.0,
   "end_distance_m": 93.0,
   "start_elevation_m": 150.8855728274131,
   "end_elevation_m": 153.68982308060652,
   "min_gradient_pct": -15.31057274855229,
   "suppressed_max_gradient_pct": 25.363981425531676,
   "suppressed_location_m": [
    221.0,
    241.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 13.591222169746061,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 73.0,
   "end_distance_m": 98.0,
   "start_elevation_m": 150.8855728274131,
   "end_elevation_m": 154.28337836984963,
   "min_gradient_pct": -9.998443093551941,
   "suppressed_max_gradient_pct": 25.664318013677075,
   "suppressed_location_m": [
    222.0,
    247.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 10.57420297860864,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 58.0,
   "end_distance_m": 108.0,
   "start_elevation_m": 150.26073825234928,
   "end_elevation_m": 155.5478397416536,
   "min_gradient_pct": -2.347260054468279,
   "suppressed_max_gradient_pct": 20.564158306401904,
   "suppressed_location_m": [
    219.0,
    269.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 9.65316403415045,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 397.0,
   "end_distance_m": 497.0,
   "start_elevation_m": 183.37880358893074,
   "end_elevation_m": 193.0319676230812,
   "min_gradient_pct": -1.1034538406911736,
   "suppressed_max_gradient_pct": 15.466605267812584,
   "suppressed_location_m": [
    200.0,
    300.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.453,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 69.0,
  "shape_class": "stepped"
 },
 "length_m": 3221.2536492328913,
 "start_elevation_m": 147.95755103491064,
 "end_elevation_m": 286.7033958940427,
 "endpoint_gain_m": 138.7458448591321,
 "overall_gradient_pct": 4.307200238397029,
 "accumulated_ascent_m": 155.94102897644692,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 20.792399931158343,
   "start_distance_m": 492.0,
   "end_distance_m": 497.0,
   "midpoint_distance_m": 494.5,
   "start_elevation_m": 191.99234762652327,
   "end_elevation_m": 193.0319676230812,
   "start_xy": [
    287094.9494390027,
    366797.335414626
   ],
   "end_xy": [
    287090.2677406099,
    366795.57993777446
   ]
  },
  "max_10m": {
   "gradient_pct": 16.182837154020717,
   "start_distance_m": 589.0,
   "end_distance_m": 599.0,
   "midpoint_distance_m": 594.0,
   "start_elevation_m": 199.6505952685119,
   "end_elevation_m": 201.26887898391396,
   "start_xy": [
    287020.9104385414,
    366739.5328186023
   ],
   "end_xy": [
    287014.5051715651,
    366731.85415525705
   ]
  },
  "max_20m": {
   "gradient_pct": 14.02125126596701,
   "start_distance_m": 73.0,
   "end_distance_m": 93.0,
   "midpoint_distance_m": 83.0,
   "start_elevation_m": 150.8855728274131,
   "end_elevation_m": 153.68982308060652,
   "start_xy": [
    287466.294995293,
    366958.3442837992
   ],
   "end_xy": [
    287446.7643371388,
    366954.0369291934
   ]
  },
  "max_25m": {
   "gradient_pct": 13.591222169746061,
   "start_distance_m": 73.0,
   "end_distance_m": 98.0,
   "midpoint_distance_m": 85.5,
   "start_elevation_m": 150.8855728274131,
   "end_elevation_m": 154.28337836984963,
   "start_xy": [
    287466.294995293,
    366958.3442837992
   ],
   "end_xy": [
    287441.8817033467,
    366952.9599507407
   ]
  },
  "max_50m": {
   "gradient_pct": 10.57420297860864,
   "start_distance_m": 58.0,
   "end_distance_m": 108.0,
   "midpoint_distance_m": 83.0,
   "start_elevation_m": 150.26073825234928,
   "end_elevation_m": 155.5478397416536,
   "start_xy": [
    287466.6629639096,
    366971.1081786291
   ],
   "end_xy": [
    287432.32759498525,
    366950.0692518085
   ]
  },
  "max_100m": {
   "gradient_pct": 9.65316403415045,
   "start_distance_m": 397.0,
   "end_distance_m": 497.0,
   "midpoint_distance_m": 447.0,
   "start_elevation_m": 183.37880358893074,
   "end_elevation_m": 193.0319676230812,
   "start_xy": [
    287170.89739591087,
    366839.2128260781
   ],
   "end_xy": [
    287090.2677406099,
    366795.57993777446
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -38.722199810952134,
   "start_distance_m": 306.0,
   "end_distance_m": 311.0,
   "midpoint_distance_m": 308.5,
   "start_elevation_m": 177.24569165853333,
   "end_elevation_m": 175.30958166798573,
   "start_xy": [
    287259.342087292,
    366858.49253362644
   ],
   "end_xy": [
    287254.8360811797,
    366856.32553068904
   ]
  },
  "min_10m": {
   "gradient_pct": -27.065583068168735,
   "start_distance_m": 303.0,
   "end_distance_m": 313.0,
   "midpoint_distance_m": 308.0,
   "start_elevation_m": 177.80570246348915,
   "end_elevation_m": 175.09914415667228,
   "start_xy": [
    287262.0458444816,
    366859.79241693736
   ],
   "end_xy": [
    287253.03336489736,
    366855.4593822036
   ]
  },
  "min_20m": {
   "gradient_pct": -15.31057274855229,
   "start_distance_m": 300.0,
   "end_distance_m": 320.0,
   "midpoint_distance_m": 310.0,
   "start_elevation_m": 177.82245883748314,
   "end_elevation_m": 174.76034428777268,
   "start_xy": [
    287264.7495477916,
    366861.09241152304
   ],
   "end_xy": [
    287246.7249978524,
    366852.42549064383
   ]
  },
  "min_25m": {
   "gradient_pct": -9.998443093551941,
   "start_distance_m": 300.0,
   "end_distance_m": 325.0,
   "midpoint_distance_m": 312.5,
   "start_elevation_m": 177.82245883748314,
   "end_elevation_m": 175.32284806409515,
   "start_xy": [
    287264.7495477916,
    366861.09241152304
   ],
   "end_xy": [
    287241.8716585954,
    366851.3228708357
   ]
  },
  "min_50m": {
   "gradient_pct": -2.347260054468279,
   "start_distance_m": 1878.0,
   "end_distance_m": 1928.0,
   "midpoint_distance_m": 1903.0,
   "start_elevation_m": 245.48883231328873,
   "end_elevation_m": 244.31520228605459,
   "start_xy": [
    286496.5083716771,
    365754.4491197015
   ],
   "end_xy": [
    286451.48260802607,
    365734.4124900269
   ]
  },
  "min_100m": {
   "gradient_pct": -1.1034538406911736,
   "start_distance_m": 1825.0,
   "end_distance_m": 1925.0,
   "midpoint_distance_m": 1875.0,
   "start_elevation_m": 245.35534629955845,
   "end_elevation_m": 244.25189245886727,
   "start_xy": [
    286539.0888337026,
    365785.9810515275
   ],
   "end_xy": [
    286454.3484921137,
    365735.2994541002
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.11517677971125,
   "start_distance_m": 382.0,
   "end_distance_m": 384.0,
   "midpoint_distance_m": 383.0,
   "start_elevation_m": 182.13987553676074,
   "end_elevation_m": 182.70217907235497,
   "start_xy": [
    287185.683679749,
    366841.73587444
   ],
   "end_xy": [
    287183.71212196467,
    366841.3997794017
   ]
  },
  "max_3m": {
   "gradient_pct": 25.452735074213706,
   "start_distance_m": 381.0,
   "end_distance_m": 384.0,
   "midpoint_distance_m": 382.5,
   "start_elevation_m": 181.93859702012855,
   "end_elevation_m": 182.70217907235497,
   "start_xy": [
    287186.66947275423,
    366841.9038391711
   ],
   "end_xy": [
    287183.71212196467,
    366841.3997794017
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "no_bench_suppression": {
   "masked_fraction": 0.016,
   "windows_resited": [
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.047,
   "windows_resited": [
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 4,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 222.0,
     "end_m": 247.0,
     "raw_pct": 25.66,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 221.0,
     "end_m": 241.0,
     "raw_pct": 25.36,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 221.0,
     "end_m": 231.0,
     "raw_pct": 29.24,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 323.0,
     "end_m": 348.0,
     "raw_pct": 17.45,
     "reason": "hump+mask-edge"
    },
    {
     "window_m": 20.0,
     "start_m": 328.0,
     "end_m": 348.0,
     "raw_pct": 18.14,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 338.0,
     "end_m": 348.0,
     "raw_pct": 23.72,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 344.0,
     "end_m": 349.0,
     "raw_pct": 27.44,
     "reason": "short-step"
    },
    {
     "window_m": 20.0,
     "start_m": 111.0,
     "end_m": 131.0,
     "raw_pct": 15.49,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 250.0,
     "end_m": 260.0,
     "raw_pct": 17.66,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.488,
   "obstruction_max_height_m": 27.92,
   "flagged_windows_m": [
    2,
    3,
    5,
    20,
    25
   ]
  },
  "excluded_ranges_m": [
   [
    109.0,
    133.0
   ],
   [
    219.0,
    262.0
   ],
   [
    270.0,
    351.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "elevation_crs": "EPSG:27700",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/wales/dtm_1m/wg_del_11_285365_20210302dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_11_285366_20210302dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_11_285367_20210302dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_11_286365_20210302dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_11_286366_20210302dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_11_286367_20210302dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_11_287365_20210302dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_11_287366_20210302dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_11_287367_20210302dtm.tif"
  ],
  "calculated_at": "2026-09-12T00:09:08+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-wales/batch-england-rchunk05.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-wales-260911",
  "elevation_provider": "Welsh Government",
  "elevation_dataset": "Welsh Government LiDAR 1m DTM (2020-2023)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Crown copyright Welsh Government",
  "elevation_catalogue_layer": "geonode:welsh_government_lidar_tile_catalogue_2020_2023",
  "elevation_tile_ids": [
   "wg_del_11_285365_20210302dtm.tif",
   "wg_del_11_285366_20210302dtm.tif",
   "wg_del_11_285367_20210302dtm.tif",
   "wg_del_11_286365_20210302dtm.tif",
   "wg_del_11_286366_20210302dtm.tif",
   "wg_del_11_286367_20210302dtm.tif",
   "wg_del_11_287365_20210302dtm.tif",
   "wg_del_11_287366_20210302dtm.tif",
   "wg_del_11_287367_20210302dtm.tif"
  ],
  "elevation_capture_dates": [
   "02-03-2021"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Llangernyw",
  "county": "Conwy - Conwy"
 }
}